Developer Avatron announced its “Air Display”app, which allows iPhones, iPads and Macs to act as a second or third monitor, would be implementing support for the 2048-by-1536 resolution of the new iPad’s 264-DPI Retina display. That means you will soon be able to use your third-generation iPad as a 2048-by-1536 computer monitor.

The update will also benefit the iPad 2 and iPhone 4S with “dramatically better frame rates.” In addition, the upcoming update will allow you to enable HiDPI mode in Lion or Mountain Lion, a “feature in Mac OS X that renders with double-resolution on a double-resolution screen.” The results of turning on HiDPI mode in OS X is viewable in the image to the right. Avatronexplained on its blog: